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3 years ago

Help plz help help help

Mathematics

1 answer:

NemiM [27]3 years ago

8 0

Answer:

yes

Step-by-step explanation:

Have a nice day

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Solve the system by substitution. y = -7x + 4 10x – 10y = 40

zavuch27 [327]

Answer:

point form

(1,-3)

equation form

x=1 y= -3

Step-by-step explanation:

6 0

3 years ago

Help !??!!<br> am stuck

Nikolay [14]

Answer:

Step-by-step explanation:

you have to simplify both sides of the equation then isolate the variable

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4 years ago

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Find the missing value so that the two points have a slope of -3/10 (x,-8) and (-5,-5)

rosijanka [135]

Answer:

Step-by-step explanation:

The slope is given by

m = (y2-y1)/(x2-x1)

-3/10 = (-5--8)/(-5-x)

-3/10 = (-5+8)/(-5-x)

Using cross multiplication

-3 (-5-x) = 10*(-5+8)

Simplify

-3(-5-x) =10(3)

Divide by -3

-3/-3(-5-x) =10(3)/-3

-5-x = -10

Add 5 to each side

-5-x+5 = -10+5

-x=-5

Divide by -1

x=5

4 0

3 years ago

Jake earns $7.50 per hour working at a local car wash. The function,

baherus [9]

Answer:

f(x) = y

y = 7.50x

To find the inverse, swap x and y

x = 7.50y

Now solve for y

y = x/7.50

f-1(x) = x/7.50

3 0

3 years ago

Derive a formula to find the perimeter of an isosceles triangle in which one of the equal

Scorpion4ik [409]

Given :

Length of one of the equal sides of an isosceles triangle = 3x+2

Then, length of the other equal side will also be = 3x+2

Length of the unequal side of this isosceles triangle = 14

Formula for finding the perimeter of an isosceles triangle :

$= \tt side + side + side$

A formula for finding the perimeter of this isosceles triangle :

$= \tt3x + 2 + 3x + 2 + 14$

Bringing all like terms together we get :

$=\tt 3x + 3x + 2 + 2 + 14$

$= \tt6x + 4 + 14$

$\color{plum}\tt = 6x + 18$

Thus, the formula = 6x+18

Therefore, a formula to find the perimeter of this isosceles triangle = <u>6x+18</u>

7 0

3 years ago